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This differential treatment of ‘they’ in A as clear and acceptable, while in C, it is ambiguous and rejectable, is worrisome. In addition, rejecting B on awkwardness and wordiness, isn’t strong enough'

Not happy with this example; Are there an OA and OE from the source?
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This differential treatment of ‘they’ in A as clear and acceptable, while in C, it is ambiguous and rejectable, is worrisome. In addition, rejecting B on awkwardness and wordiness, isn’t strong enough'

Not happy with this example; Are there an OA and OE from the source?
This question is from Kaplan and OA is already entered.

There are other reasons for rejecting B and C -- I will post the OE after a little more discussions.
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While high oil prices may be problematic for some trucking companies, they may be disastrous for airlines, whose operations – already losing money – could be plunged into bankruptcy.

(A) they may be disastrous for airlines, whose
Correct because "they" is parallel to "high oil prices" and "whose" clearly modifies "airlines".
(B) they may potentially cause disaster for airlines in that their
"may potentially" is pleonastic, "cause disaster..." is unidiomatic.
(C) for airlines they may be disastrous, because their
"because their" is ambiguous. "Their" can refer to either "airlines" or "oil prices".
(D) for airlines, it may be disastrous in that their
The first comma is invalid, "it" is not congruent with "prices".
(E) it may potentially cause disaster for airlines, whose
"it" is not congruent with "prices", "may potentially" is pleonastic.
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While high oil prices may be problematic for some trucking companies, they may be disastrous for airlines, whose operations – already losing money – could be plunged into bankruptcy.

(A) they may be disastrous for airlines, whose
correct
(B) they may potentially cause disaster for airlines in that their
awkward and wordy
(C) for airlines they may be disastrous, because their
the antecedent of they, their in not clear
(D) for airlines, it may be disastrous in that their
It cannot be a pronoun for plural "high oil prices"
(E) it may potentially cause disaster for airlines, whose
It cannot be a pronoun for plural "high oil prices"
You arrived at the correct answer.
In the analysis part, there are more specific reasons to discard option B. For option C, "they" is not ambiguous, but "their" is ambiguous.
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While high oil prices may be problematic for some trucking companies, they may be disastrous for airlines, whose operations – already losing money – could be plunged into bankruptcy.

(A) they may be disastrous for airlines, whose
they refer to high oil prices,whose refer to airlines. correct
(B) they may potentially cause disaster for airlines in that their change of meaning as high prices being disastrous is different from high prices causeing a disaster
(C) for airlines they may be disastrous, because theirincorrect structure because their is ambigous.
(D) for airlines, it may be disastrous in that their it is wrongly refering to high oil prices
(E) it may potentially cause disaster for airlines, whose it is wrongly refering to high oil prices
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I understand that we need to use "they" to refer to prices (plural) but isn't it then creating an ambiguity as "they" could refer to both prices and companies?
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But how do you know that "they" in the first option refers to prices and not companies? What is the rule here please?
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We don't always have ambiguity when there is more than one possible antecedent for a pronoun, as long as the intended antecedent is clear. Here, it's pretty clear that trucking companies aren't disastrous for airlines. This doesn't fit the overall meaning of the sentence, which contrasts the effect of oil prices on two different types of companies. Also, the structure of the sentence points us toward the correct antecedent. If we start a sentence with "While X does this, it," the expectation is that "it" refers back to the subject, "X," and we'd have to clarify if we intended anything else. This works the same for objects as for subjects. If I say "I like jam on toast, but I also like it by itself," the structure leads us to believe that "it" refers to the first object ("jam"), not the noun from the modifier ("toast"). If I mean that I like toast by itself, I need to supply that noun rather than use a pronoun. Here's a good official example: https://gmatclub.com/forum/by-offering- ... 35470.html

Speaking of official examples, the problem in this post is clearly inspired by this official question, so we can be sure this is just fine on the GMAT: https://gmatclub.com/forum/qotd-while-d ... 43182.html
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Very elegant OE provided by Kaplan.

The underlined portion contains two pronouns ("they" and "whose"), so check that they are being used properly. "They" clearly refers to the oil prices, and "whose" clearly refers to airlines. The pronouns match up clearly and logically. There appears to be no error.

(A) and (B) begin with "they," (C) and (D) begin with "for," and (E) begins with "it."

(B) contains a couple of problems. First, the phrase "may potentially" is redundant. If something "may" happen, that already implies potential. There is no need for both words. Further, the pronoun "their" at the end is ambiguous, as it could refer to oil prices or airlines. That eliminates (B).

The first half of the sentence begins with "While," making it a dependent clause. What follows the comma should be an independent clause (i.e., a sentence that can stand by itself). There's no need for the conjunction "for" as the first half is already dependent. That eliminates (C) and (D).

The potential cause of disaster is "oil prices," which is a plural noun. That should be replaced with "they," not "it." That eliminates (E).

There is no error in the original sentence, and all other answer choices are flawed. That makes (A) the correct answer.
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The mechanical contention of the OE that in C, 'their' might refer to the high oil price is untenable because after all oil prices have no operations. At best, their might refer to either the airlines or the truck companies. Therefore, 'they' and their'indeed refer to two different entities, and that is what makes C incorrect.
In general, who or what can go bankrupt? Is it a person, a company, or an operation?
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gmatFalcon
While high oil prices may be problematic for some trucking companies, they may be disastrous for airlines, whose operations—already losing money—could be plunged into bankruptcy.


A. they may be disastrous for airlines, whose
B. they may potentially cause disaster for airlines in that their
C. for airlines they may be disastrous, because their
D. for airlines, it may be disastrous in that their
E. it may potentially cause disaster for airlines, whose

https://gmatclub.com/forum/qotd-while-d ... 43182.html - the similar question, explained by GmatNinja.
And more: https://gmatclub.com/forum/qotd-in-some ... hilit=QOTD
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